Some renamings and removals

1. Renamed HtmlHelperExtensions to LabelHelpers since it's not a class
containing extension methods anymore due to SOMEONE's modification. :(
Anyways, it's just a helper class now so its name should indicate this.
2. Capitalized the first letter in getStatus to follow the naming
convention.
3. More white-space removals.
Generalized two methods for Repository making them part of IRepository
Some fixes to Club\List.cshtml

1. Removed the link for creating new clubs since it's not founded in
this way.
2. Removed the stupid ';'s.
3. Made club names links to their introduction pages.
Made UnitOfWork use IRepository instead of Repository
Added a confirmation window for enabling recruit and a introduction page
Added an extension method to the OrderBy family

Now the OrderBy clause has been largely simplified and you can pass
string to it to finish the task (use '.' to use the properties in
navigation properties). Check the ClubController's List action for
example. Cool, right?